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Note 10 - Fair Value Measurements - Schedule of Schedule of Financial Assets and Liabilities on a Recurring and Non-recurring Basis (Details) - Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2024 | Dec. 31, 2023
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Minimum [Member] | Valuation, Market Approach [Member] | Measurement Input, Discount Rate [Member] | Collateral Dependent Loans [Member] |  |
Collateral dependent loans | 0 |
Minimum [Member] | Interest Rate Lock Commitments [Member] | Fair Value, Recurring [Member] | Valuation, Market Approach [Member] | Pull-through Expectations Rate [Member] |  |
Interest rate lock commitments with customers | 0.80 |
Minimum [Member] | Mandatory and Best Effort Forward Commitments [Member] | Fair Value, Recurring [Member] | Valuation, Market Approach [Member] | Pull-through Expectations Rate [Member] |  |
Interest rate lock commitments with customers | 0.80 |
Minimum [Member] | Mortgage Servicing Rights [Member] | Fair Value, Nonrecurring [Member] | Industry Sources [Member] | Measurement Input, Prepayment Rate [Member] |  |
MSR | 0 |
Maximum [Member] | Valuation, Market Approach [Member] | Measurement Input, Discount Rate [Member] | Collateral Dependent Loans [Member] |  |
Collateral dependent loans | 0.25 |
Maximum [Member] | Interest Rate Lock Commitments [Member] | Fair Value, Recurring [Member] | Valuation, Market Approach [Member] | Pull-through Expectations Rate [Member] |  |
Interest rate lock commitments with customers | 0.99 |
Maximum [Member] | Mandatory and Best Effort Forward Commitments [Member] | Fair Value, Recurring [Member] | Valuation, Market Approach [Member] | Pull-through Expectations Rate [Member] |  |
Interest rate lock commitments with customers | 0.99 |
Maximum [Member] | Mortgage Servicing Rights [Member] | Fair Value, Nonrecurring [Member] | Industry Sources [Member] | Measurement Input, Prepayment Rate [Member] |  |
MSR | 0.50 |
Weighted Average [Member] | Valuation, Market Approach [Member] | Measurement Input, Discount Rate [Member] | Collateral Dependent Loans [Member] |  |
Collateral dependent loans | 0 | 0
Weighted Average [Member] | Interest Rate Lock Commitments [Member] | Fair Value, Recurring [Member] | Valuation, Market Approach [Member] | Pull-through Expectations Rate [Member] |  |
Interest rate lock commitments with customers | 0.902 | 0.905
Weighted Average [Member] | Mandatory and Best Effort Forward Commitments [Member] | Fair Value, Recurring [Member] | Valuation, Market Approach [Member] | Pull-through Expectations Rate [Member] |  |
Interest rate lock commitments with customers | 0.902 | 0.905
Weighted Average [Member] | Mortgage Servicing Rights [Member] | Fair Value, Nonrecurring [Member] | Industry Sources [Member] | Measurement Input, Prepayment Rate [Member] |  |
MSR | 0.118 | 0.072

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